Non-Jew in the JCC

One day, my fraternity was doing the occasional philanthropy event. This
time it was doing some construction work at the local Jewish Community
Center. Lunch time came, we took a break, and we ate what their little
cafeteria was serving: hambugers.
One of my many fraternity brothers didn't know much about kosher.
Needless to say, he didn't get a very positive reaction when he asked the
lunch lady "Do you have any cheese for this burger?"